EP0233873B1 - Conveyor belt for bulk material handling - Google Patents

Conveyor belt for bulk material handling Download PDF

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Publication number
EP0233873B1
EP0233873B1 EP85905443A EP85905443A EP0233873B1 EP 0233873 B1 EP0233873 B1 EP 0233873B1 EP 85905443 A EP85905443 A EP 85905443A EP 85905443 A EP85905443 A EP 85905443A EP 0233873 B1 EP0233873 B1 EP 0233873B1
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
side parts
belt
central part
conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85905443A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0233873A1 (en
Inventor
Sverker Melander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEHTJE Arne
Original Assignee
WEHTJE Arne
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WEHTJE Arne filed Critical WEHTJE Arne
Publication of EP0233873A1 publication Critical patent/EP0233873A1/en
Application granted granted Critical
Publication of EP0233873B1 publication Critical patent/EP0233873B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/32—Belts or like endless load-carriers made of rubber or plastics
    • B65G15/40—Belts or like endless load-carriers made of rubber or plastics troughed or tubular; formed with joints facilitating troughing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk

Definitions

  • the present invention refers to a conveyor belt for bulk material handling.
  • the invention relates more detailed to a conveyor belt specifically suitable for long conveyors for instance up to 30 km or longer.
  • Conveyor belts have been used for bulk material transport for more than a hundred years. For instance an application for a patent regarding a conveyor belt was made already 1886 compare US patent specification US-A-571 604.
  • US-A-3 615 152 describes reinforced conveyor belts with longitudinal layers of reinforcement and a number of transversal layers of reinforcement. Also in that patent specification the conveyor belt is originally flat and shaped into a trough or channel form. The conveyor belt can pass over a track which also includes changes of direction.
  • belt conveyors have been developed carried by steel cables specifically used at long conveying distances using only one endless belt (up to now about 30 km or longer) and only one driving station.
  • the steel cables have a separate tensioner, which has a considerably higher tension than that of the conveyor belt.
  • the cables are carried by special sets of rollers.
  • the belts are flat also in these cases and of uniform thickness with different types of reinforcement and provided with special ribs with tracks for the cables.
  • the steel cables carry and drive the belt with the mentioned tracks. The same applies to the returning side (underside) of the belt. Naturally, also ordinary rollers can be used for the returning side.
  • the conveyor belt is driven by a source of power. Necessary power depends on different resistances to motion of a belt conveyor made up of various resistances which, according to ISO 5048-1797 (E), can be classified into five groups:
  • the resistances mainly comprises the following factors:
  • the object of the present invention is to provide a conveyor belt for bulk material handling, which reduces power consumption, reduces spillage and at the same time increases capacity, making it possible to build long conveyors for instance 30 km with one driving station, increases the indurance of the belt, reduces wearing, applies the strength of reinforcement where it is best utilised, reduces maintenance costs, makes the belt self-aligning and reduces the possible radius of curvature laterally as well as vertically.
  • a conveyor belt for transportation of bulk material characterized by a conveyor belt comprising a central part and two integral side parts, which side parts are angled to the central part to form a trough-shaped section, the trough-shape being given by the manufacture of the belt and the angle between the side parts and the central part being between 5° and 170°.
  • This central part comprises a longitudinal and transversal reinforcement in its under part and wearing resistant material in its upper part facing against the carrying part of the material conveyed.
  • the side parts of the conveyor belt incorporates wearing resistant material and longitudinal as well as transversal reinforcement.
  • reinforcement in the central part of the belt as well as its side parts can be connected as a unit for instance a reinforcing mat throughout the belt.
  • the belt speed can be increased, which further makes possible an increased capacity.
  • the belt is self-aligning and it is possible to reduce the radius of curvature laterally as well as longitudinally.
  • Fig. 1 shows a cross section of a conveyor belt 1 made according to the present invention.
  • the conveyor 1 comprises a central part 2 and two integrally connected side parts 3 and 4, as shown in Fig. 1.
  • the central part 2 has a width b and the side parts have a width a and c respectively in their plane.
  • the central part 2 has a thickness t 2 and the side parts t, and t 3 respectively.
  • the side parts are angled up at an angle alfa in relation to the horizontal and are manufactured with those angles.
  • the angling shown in Fig. 1 causes the conveyor belt to have roughly a V-shaped form in cross section.
  • the angle alfa between respective side part and the horizontal part can vary considerably.
  • the angle alfa should exceed 5° in order to have a minimum of required resistance to bending of the conveyor belt. Otherwise, the angle alfa can have any value, between 5° and 170°.
  • the preferred lowest value of the angle alfa is at least 20°.
  • the largest suitable angle can be approximately 120°.
  • a preferred angle of 45° which is a suitable comprise between resistance against bending and ability to carry bulk material.
  • Fig. 5 there is shown an angle of 90°, which gives the conveyor belt an increased resistance against bending.
  • Fig. 1 the conveyor belt is shown carried by two cables 5 and 6 with suitable tracks connected with the belt.
  • the track members 7 and 8 are positioned at a distance of d and e respectively from the side parts edges.
  • the track members 7 and 8 are positioned anywhere along the side parts but are shown in Fig. 1 in the middle of the side parts.
  • Fig. 1 the thickness of the central part is shown as t 2 , which is equal to or larger than the thickness of the side parts. t 2 can be made thicker, when necessary, since the central part is normally exposed to a larger wearing.
  • a conveyor belt with only a longitudinal reinforcement consisting of steel cables or cables of any other material for instance aramid.
  • the reinforcement of the side parts can naturally consist of other material than in the central part 2 or in the protruding part 9 of the central part 2. This type of reinforcement can especially be used in very long conveyors with one driving station.
  • Fig. 3 shows a belt strengthening which gives a strong resistance of the wearing surface of the central part and could be used with great advantage at normal length of conveyor belts.
  • the reinforcement of the belt can consist of one or more reinforcement mats or transversal discrete reinforcement as spring steel or cold drawn material with high material strength.
  • the transversal reinforcement of the belt covers the two side parts and extends partly into the central part in order to increase the resistance for transversal bending between the side parts and the central part in the corners and to give further space for wear resisting material in the central part.
  • Fig. 4 shows a combination of reinforcement shown in Figs. 2 and 3 and thus useful for relatively long belts with a strong increased depth of the wearing resisting material in the central part of the belt.
  • Fig. 5 it is shown that the angle alfa can be equal to 90°.
  • the protruding part 9 is shown with broken lines and is left out in this embodiment.
  • Fig. 6 there is shown a general cross section of a conveyor belt for instance carried by steel cables. Variations of the reinforcement can be made as in Figs. 2, 3 and 4 or in many other ways.
  • the conveyor belt is provided with a top layer and a bottom layer, and any now existing natural, synthetic material can be used therefore, or a combination thereof.
  • suitable materials are steel, metals and alloys thereof, different polyamides, aramids, glass fibre, synthetic fibre, natural products such as cotton, jute etc. Said materials and combinations thereof can be used in all kinds of reinforcement of the side parts and central part of the conveyor belt and can be used for transversal reinforcement as well as longitudinal. Mats of above-mentioned materials can also be used as reinforcement in one or more layers (plies).
  • the conveyor belt can be carried by two or more roller stands where the side rollers have an angle alfa in relation to the horizontal plan.
  • the rollers only support the side parts of the belt and can be positioned on a greater distance from each other than is normal according to prior art, on account of the increased resistance to bending, which is achieved by the profiling of the belt.
  • a central roller 10 which carries the central part 2 of the conveyor belt and two side rollers 11 and 12 guiding the side parts 3 and 4 of the conveyor belt.
  • rollers can vary in different applications. It is possible to use a V-shaped conveyor belt where the central part 2 is very short and only two rollers which have an angle in relation to each other. Alternatively five rollers can be used whereby each side part is divided into two parts angled in relation to each other.
  • Fig. 6 there is shown a conveyor belt where the protruding part 9 is eliminated.
  • the conveyor belt is carried as in Fig. 1 by two cables 5 and 6.
  • These cables can consist of steel cables, nylon cables or cables of any other known suitable material.
  • Fig. 7 there is shown a cross section corresponding to Fig. 5 where the vertical legs and the central part by means of rollers have been bent to a closed form.
  • Fig. 8 there is shown a cross section corresponding to Fig. 6 wherein the vertical and the central parts by means of cables have been bent to a closed form.
  • the top of each side part forms an angle gamma to the horizontal plan. This angle can of course vary from close to 90° to almost 0°.
  • the edges can be provided with openings which makes it possible to get a grip between the two edges like a zip fastener.
  • Fig. 9 is thus a side view over the top part of the respective edges of the conveyor belt.
  • the edges are provided with cam-like projections 15 corresponding to the openings 16. These projections and openings are alternately positioned in order to get a grip into each other when the edges are bent together as shown in Figs. 7 and 8. In this manner a relative movement between the edges is prevented and a seal achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Belt Conveyors (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP85905443A 1984-10-23 1985-10-22 Conveyor belt for bulk material handling Expired EP0233873B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8405284A SE445337B (sv) 1984-10-23 1984-10-23 Transportband for transport av massgods
SE8405284 1984-10-23

Publications (2)

Publication Number Publication Date
EP0233873A1 EP0233873A1 (en) 1987-09-02
EP0233873B1 true EP0233873B1 (en) 1989-10-11

Family

ID=20357449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85905443A Expired EP0233873B1 (en) 1984-10-23 1985-10-22 Conveyor belt for bulk material handling

Country Status (12)

Country Link
US (1) US4819791A (sv)
EP (1) EP0233873B1 (sv)
JP (1) JPS62500582A (sv)
AU (1) AU585553B2 (sv)
BR (1) BR8507260A (sv)
DE (1) DE3573588D1 (sv)
DK (1) DK283786A (sv)
FI (1) FI871755A0 (sv)
NO (1) NO862488D0 (sv)
SE (1) SE445337B (sv)
WO (1) WO1986002621A1 (sv)
ZA (1) ZA858111B (sv)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462088B (sv) * 1987-02-20 1990-05-07 Lennart Tingskog Bandtransportoer
BR8807855A (pt) * 1987-12-18 1990-11-13 Lennart Tingskog Correia transportadora de material elastico e transortador de correia
GB2214887B (en) * 1988-02-12 1992-01-22 Cable Belt Ltd Conveyor systems, conveyor belts and belt manufacture
FR2635763A1 (fr) * 1988-08-25 1990-03-02 Transport Etudes Transporteur a bande dont le profil des rebords autorise une fermeture simplifiee
US5004098A (en) * 1989-04-21 1991-04-02 Joy Technologies Inc. Conveyor belt
US5107983A (en) * 1991-01-07 1992-04-28 Harrison Handling, Inc. Fold-over conveyor belt
DE4212824C1 (sv) * 1992-04-16 1993-08-12 Conrad Scholtz Gmbh, 2000 Hamburg, De
US5871080A (en) * 1995-09-21 1999-02-16 Planet Products Corporation Product aligning system
SE504935C2 (sv) * 1996-05-31 1997-05-26 Torsten Loodberg Transportband
US6036000A (en) * 1996-05-31 2000-03-14 Loodberg; Torsten Conveyor belt
FR2761352B1 (fr) * 1997-03-25 1999-05-28 Sfbt Societe Francaise De Band Bande transporteuse souple et convoyeur en faisant application
US5791029A (en) * 1997-06-04 1998-08-11 United States Supply Company, Inc. Blanket construction for a compressive shrinkage apparatus
CN1124968C (zh) * 1998-03-17 2003-10-22 凤凰股份有限公司 传送带
FR2805246B1 (fr) * 2000-02-22 2002-07-05 Tremark Technologies Inc Machine de mise en boite de matiere molle comportant une courroie de conformation de la matiere molle
US20030048574A1 (en) * 2001-09-13 2003-03-13 Seagate Technology, Llc Hydrodynamic fluid bearing with gall resistant interface
DK1564166T3 (da) * 2004-02-10 2006-10-16 Financ De Gestion Soc Fastholdelsesindretning for en rulle i et båndtransportanlæg eller et transportanlæg med bærelister
US7051868B2 (en) * 2004-02-19 2006-05-30 Atbc, Llc Prestressed tubular belt and method for making
CL2009001640A1 (es) * 2008-07-28 2010-06-18 Contitech Usa Inc Cinta transportadora para uso en un sistema de cinta transportadora tubular, donde la cinta tiene un ancho y un largo que comprende un primer y segundo borde longitudinal opuestos, donde durante el uso del primer borde longitudinal y el segundo borde longitudinal se traslapan para formar una region.
IT1401405B1 (it) * 2010-07-30 2013-07-26 Ct Pack Srl Macchina per il confezionamento di articoli in contenitori.
DE102011050936A1 (de) * 2011-06-08 2012-12-13 ThyssenKrupp Fördertechnik GmbH Fördergurtanlage sowie Fördergurt
DK201500307A1 (da) * 2015-05-26 2016-12-19 Transp Ivs Transportanordning
FR3041619B1 (fr) * 2015-09-30 2020-04-03 Rene Brunone Convoyeur a bande en auge profonde autoportante et utilisation d'une telle bande
US9714140B1 (en) * 2016-05-23 2017-07-25 James D. Gray Belt configured to include rigid portions
DE102018117007B4 (de) * 2018-07-13 2022-09-08 Fritsch Bakery Technologies GmbH & Co. KG Einrichtung zur Förderung von Teig entlang einer Förderstrecke

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571604A (en) * 1896-11-17 robins
US700308A (en) * 1901-08-27 1902-05-20 Link Belt Engineering Company Conveyer-belt.
US722041A (en) * 1902-11-24 1903-03-03 Mail Belting Company Conveyer-belt.
US722039A (en) * 1902-11-24 1903-03-03 Main Belting Company Conveyer-belt.
US2656035A (en) * 1949-03-02 1953-10-20 Cable Belt Ltd Conveyer belt
FR1083487A (fr) * 1952-04-22 1955-01-10 Cable Belt Ltd Courroie pour transporteur
GB737338A (en) * 1952-07-03 1955-09-21 Samuel Davis Robins Improvements in or relating to endless belt conveyor or elevator system
US2839181A (en) * 1954-12-31 1958-06-17 Adamson Stephens Mfg Co Movable tubular conveyor belt
US2998121A (en) * 1958-01-07 1961-08-29 Norman W Gilbert Self forming flange belt conveyor assembly and belting therefor
CH430577A (de) * 1965-08-31 1967-02-15 Hashimoto Kunio Anlage zum Fördern von Gut
GB1227131A (sv) * 1967-04-12 1971-04-07
GB1235480A (en) * 1967-11-07 1971-06-16 Solar Thomson Eng Co Improvements in or relating to conveyor belts
FR1596491A (sv) * 1968-07-08 1970-06-22
FR1603133A (sv) * 1968-07-08 1971-03-22
CA1120381A (en) * 1978-09-13 1982-03-23 Gary L. Blalock Electrically conductive fabric
FR2471337A1 (fr) * 1979-12-17 1981-06-19 Kleber Colombes Bande transporteuse
AU539747B2 (en) * 1979-12-17 1984-10-11 S.A. Dite Carrier belt for materials
US4410082A (en) * 1980-08-26 1983-10-18 The First National Bank Of Akron Stretchable load-retaining conveyor belt
ZA815817B (en) * 1980-08-26 1982-08-25 First National Bank Akron Stretchable load-retaining conveyor belt

Also Published As

Publication number Publication date
SE8405284D0 (sv) 1984-10-23
ZA858111B (en) 1986-06-25
NO862488L (no) 1986-06-20
WO1986002621A1 (en) 1986-05-09
DK283786D0 (da) 1986-06-17
DE3573588D1 (en) 1989-11-16
SE445337B (sv) 1986-06-16
FI871755A (fi) 1987-04-22
BR8507260A (pt) 1987-11-03
AU5063585A (en) 1986-05-15
NO862488D0 (no) 1986-06-20
DK283786A (da) 1986-06-17
SE8405284L (sv) 1986-04-24
JPS62500582A (ja) 1987-03-12
US4819791A (en) 1989-04-11
EP0233873A1 (en) 1987-09-02
AU585553B2 (en) 1989-06-22
FI871755A0 (fi) 1987-04-22

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